/**
* DES加密/解密
* @Copyright Copyright (c) 2006
* @author Guapo
* @see DESCore
*/
var DES = {
		/*
		* encrypt the string to string made up of hex
		* return the encrypted string
		*/
		enc: function(data,firstKey,secondKey,thirdKey){
			 var leng = data.length;
			 var encData = "";
			 var firstKeyBt,secondKeyBt,thirdKeyBt,firstLength,secondLength,thirdLength;
			 if(firstKey != null && firstKey != ""){    
			   firstKeyBt = DES.getKeyBytes(firstKey);
			   firstLength = firstKeyBt.length;
			 }
			 if(secondKey != null && secondKey != ""){
			   secondKeyBt = DES.getKeyBytes(secondKey);
			   secondLength = secondKeyBt.length;
			 }
			 if(thirdKey != null && thirdKey != ""){
			   thirdKeyBt = DES.getKeyBytes(thirdKey);
			   thirdLength = thirdKeyBt.length;
			 }  
			 
			 if(leng > 0){
			   if(leng < 4){
			     var bt = DES.strToBt(data);      
			     var encByte ;
			     if(firstKey != null && firstKey !="" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != ""){
			       var tempBt;
			       var x,y,z;
			       tempBt = bt;        
			       for(x = 0;x < firstLength ;x ++){
			         tempBt = DES.encrypt(tempBt,firstKeyBt[x]);
			       }
			       for(y = 0;y < secondLength ;y ++){
			         tempBt = DES.encrypt(tempBt,secondKeyBt[y]);
			       }
			       for(z = 0;z < thirdLength ;z ++){
			         tempBt = DES.encrypt(tempBt,thirdKeyBt[z]);
			       }        
			       encByte = tempBt;        
			     }else{
			       if(firstKey != null && firstKey !="" && secondKey != null && secondKey != ""){
			         var tempBt;
			         var x,y;
			         tempBt = bt;
			         for(x = 0;x < firstLength ;x ++){
			           tempBt = DES.encrypt(tempBt,firstKeyBt[x]);
			         }
			         for(y = 0;y < secondLength ;y ++){
			           tempBt = DES.encrypt(tempBt,secondKeyBt[y]);
			         }
			         encByte = tempBt;
			       }else{
			         if(firstKey != null && firstKey !=""){            
			           var tempBt;
			           var x = 0;
			           tempBt = bt;            
			           for(x = 0;x < firstLength ;x ++){
			             tempBt = DES.encrypt(tempBt,firstKeyBt[x]);
			           }
			           encByte = tempBt;
			         }
			       }        
			     }
			     encData = DES.bt64ToHex(encByte);
			   }else{
			     var iterator = parseInt(leng/4);
			     var remainder = leng%4;
			     var i=0;      
			     for(i = 0;i < iterator;i++){
			       var tempData = data.substring(i*4+0,i*4+4);
			       var tempByte = DES.strToBt(tempData);
			       var encByte ;
			       if(firstKey != null && firstKey !="" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != ""){
			         var tempBt;
			         var x,y,z;
			         tempBt = tempByte;
			         for(x = 0;x < firstLength ;x ++){
			           tempBt = DES.encrypt(tempBt,firstKeyBt[x]);
			         }
			         for(y = 0;y < secondLength ;y ++){
			           tempBt = DES.encrypt(tempBt,secondKeyBt[y]);
			         }
			         for(z = 0;z < thirdLength ;z ++){
			           tempBt = DES.encrypt(tempBt,thirdKeyBt[z]);
			         }
			         encByte = tempBt;
			       }else{
			         if(firstKey != null && firstKey !="" && secondKey != null && secondKey != ""){
			           var tempBt;
			           var x,y;
			           tempBt = tempByte;
			           for(x = 0;x < firstLength ;x ++){
			             tempBt = DES.encrypt(tempBt,firstKeyBt[x]);
			           }
			           for(y = 0;y < secondLength ;y ++){
			             tempBt = DES.encrypt(tempBt,secondKeyBt[y]);
			           }
			           encByte = tempBt;
			         }else{
			           if(firstKey != null && firstKey !=""){                      
			             var tempBt;
			             var x;
			             tempBt = tempByte;
			             for(x = 0;x < firstLength ;x ++){                
			               tempBt = DES.encrypt(tempBt,firstKeyBt[x]);
			             }
			             encByte = tempBt;              
			           }
			         }
			       }
			       encData += DES.bt64ToHex(encByte);
			     }      
			     if(remainder > 0){
			       var remainderData = data.substring(iterator*4+0,leng);
			       var tempByte = DES.strToBt(remainderData);
			       var encByte ;
			       if(firstKey != null && firstKey !="" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != ""){
			         var tempBt;
			         var x,y,z;
			         tempBt = tempByte;
			         for(x = 0;x < firstLength ;x ++){
			           tempBt = DES.encrypt(tempBt,firstKeyBt[x]);
			         }
			         for(y = 0;y < secondLength ;y ++){
			           tempBt = DES.encrypt(tempBt,secondKeyBt[y]);
			         }
			         for(z = 0;z < thirdLength ;z ++){
			           tempBt = DES.encrypt(tempBt,thirdKeyBt[z]);
			         }
			         encByte = tempBt;
			       }else{
			         if(firstKey != null && firstKey !="" && secondKey != null && secondKey != ""){
			           var tempBt;
			           var x,y;
			           tempBt = tempByte;
			           for(x = 0;x < firstLength ;x ++){
			             tempBt = DES.encrypt(tempBt,firstKeyBt[x]);
			           }
			           for(y = 0;y < secondLength ;y ++){
			             tempBt = DES.encrypt(tempBt,secondKeyBt[y]);
			           }
			           encByte = tempBt;
			         }else{
			           if(firstKey != null && firstKey !=""){            
			             var tempBt;
			             var x;
			             tempBt = tempByte;
			             for(x = 0;x < firstLength ;x ++){
			               tempBt = DES.encrypt(tempBt,firstKeyBt[x]);
			             }
			             encByte = tempBt;
			           }
			         }
			       }
			       encData += DES.bt64ToHex(encByte);
			     }                
			   }
			 }
			 return encData;
		},
		/*
		* decrypt the encrypted string to the original string 
		*
		* return  the original string  
		*/
		dec: function(data,firstKey,secondKey,thirdKey){
			 var leng = data.length;
			 var decStr = "";
			 var firstKeyBt,secondKeyBt,thirdKeyBt,firstLength,secondLength,thirdLength;
			 if(firstKey != null && firstKey != ""){    
			   firstKeyBt = DES.getKeyBytes(firstKey);
			   firstLength = firstKeyBt.length;
			 }
			 if(secondKey != null && secondKey != ""){
			   secondKeyBt = DES.getKeyBytes(secondKey);
			   secondLength = secondKeyBt.length;
			 }
			 if(thirdKey != null && thirdKey != ""){
			   thirdKeyBt = DES.getKeyBytes(thirdKey);
			   thirdLength = thirdKeyBt.length;
			 }
			 
			 var iterator = parseInt(leng/16);
			 var i=0;  
			 for(i = 0;i < iterator;i++){
			   var tempData = data.substring(i*16+0,i*16+16);    
			   var strByte = DES.hexToBt64(tempData);    
			   var intByte = new Array(64);
			   var j = 0;
			   for(j = 0;j < 64; j++){
			     intByte[j] = parseInt(strByte.substring(j,j+1));
			   }    
			   var decByte;
			   if(firstKey != null && firstKey !="" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != ""){
			     var tempBt;
			     var x,y,z;
			     tempBt = intByte;
			     for(x = thirdLength - 1;x >= 0;x --){
			       tempBt = DES.decrypt(tempBt,thirdKeyBt[x]);
			     }
			     for(y = secondLength - 1;y >= 0;y --){
			       tempBt = DES.decrypt(tempBt,secondKeyBt[y]);
			     }
			     for(z = firstLength - 1;z >= 0 ;z --){
			       tempBt = DES.decrypt(tempBt,firstKeyBt[z]);
			     }
			     decByte = tempBt;
			   }else{
			     if(firstKey != null && firstKey !="" && secondKey != null && secondKey != ""){
			       var tempBt;
			       var x,y,z;
			       tempBt = intByte;
			       for(x = secondLength - 1;x >= 0 ;x --){
			         tempBt = DES.decrypt(tempBt,secondKeyBt[x]);
			       }
			       for(y = firstLength - 1;y >= 0 ;y --){
			         tempBt = DES.decrypt(tempBt,firstKeyBt[y]);
			       }
			       decByte = tempBt;
			     }else{
			       if(firstKey != null && firstKey !=""){
			         var tempBt;
			         var x,y,z;
			         tempBt = intByte;
			         for(x = firstLength - 1;x >= 0 ;x --){
			           tempBt = DES.decrypt(tempBt,firstKeyBt[x]);
			         }
			         decByte = tempBt;
			       }
			     }
			   }
			   decStr += DES.byteToString(decByte);
			 }      
			 return decStr;
		},
		/*
		* chang the string into the bit array
		* 
		* return bit array(it's length % 64 = 0)
		*/
		getKeyBytes: function(key){
		 var keyBytes = new Array();
		 var leng = key.length;
		 var iterator = parseInt(leng/4);
		 var remainder = leng%4;
		 var i = 0;
		 for(i = 0;i < iterator; i ++){
		   keyBytes[i] = DES.strToBt(key.substring(i*4+0,i*4+4));
		 }
		 if(remainder > 0){
		   keyBytes[i] = DES.strToBt(key.substring(i*4+0,leng));
		 }    
		 return keyBytes;
		},
		/*
		* chang the string(it's length <= 4) into the bit array
		* 
		* return bit array(it's length = 64)
		*/
		strToBt: function(str){  
		 var leng = str.length;
		 var bt = new Array(64);
		 if(leng < 4){
		   var i=0,j=0,p=0,q=0;
		   for(i = 0;i<leng;i++){
		     var k = str.charCodeAt(i);
		     for(j=0;j<16;j++){      
		       var pow=1,m=0;
		       for(m=15;m>j;m--){
		         pow *= 2;
		       }        
		       bt[16*i+j]=parseInt(k/pow)%2;
		     }
		   }
		   for(p = leng;p<4;p++){
		     var k = 0;
		     for(q=0;q<16;q++){      
		       var pow=1,m=0;
		       for(m=15;m>q;m--){
		         pow *= 2;
		       }        
		       bt[16*p+q]=parseInt(k/pow)%2;
		     }
		   }  
		 }else{
		   for(i = 0;i<4;i++){
		     var k = str.charCodeAt(i);
		     for(j=0;j<16;j++){      
		       var pow=1;
		       for(m=15;m>j;m--){
		         pow *= 2;
		       }        
		       bt[16*i+j]=parseInt(k/pow)%2;
		     }
		   }  
		 }
		 return bt;
		},
		/*
		* chang the bit(it's length = 4) into the hex
		* 
		* return hex
		*/
		bt4ToHex: function(binary) {
		 var hex;
		 switch (binary) {
		   case "0000" : hex = "0"; break;
		   case "0001" : hex = "1"; break;
		   case "0010" : hex = "2"; break;
		   case "0011" : hex = "3"; break;
		   case "0100" : hex = "4"; break;
		   case "0101" : hex = "5"; break;
		   case "0110" : hex = "6"; break;
		   case "0111" : hex = "7"; break;
		   case "1000" : hex = "8"; break;
		   case "1001" : hex = "9"; break;
		   case "1010" : hex = "A"; break;
		   case "1011" : hex = "B"; break;
		   case "1100" : hex = "C"; break;
		   case "1101" : hex = "D"; break;
		   case "1110" : hex = "E"; break;
		   case "1111" : hex = "F"; break;
		 }
		 return hex;
		},
		/*
		* chang the hex into the bit(it's length = 4)
		* 
		* return the bit(it's length = 4)
		*/
		hexToBt4: function(hex) {
		 var binary;
		 switch (hex) {
		   case "0" : binary = "0000"; break;
		   case "1" : binary = "0001"; break;
		   case "2" : binary = "0010"; break;
		   case "3" : binary = "0011"; break;
		   case "4" : binary = "0100"; break;
		   case "5" : binary = "0101"; break;
		   case "6" : binary = "0110"; break;
		   case "7" : binary = "0111"; break;
		   case "8" : binary = "1000"; break;
		   case "9" : binary = "1001"; break;
		   case "A" : binary = "1010"; break;
		   case "B" : binary = "1011"; break;
		   case "C" : binary = "1100"; break;
		   case "D" : binary = "1101"; break;
		   case "E" : binary = "1110"; break;
		   case "F" : binary = "1111"; break;
		 }
		 return binary;
		},
		/*
		* chang the bit(it's length = 64) into the string
		* 
		* return string
		*/
		byteToString: function(byteData){
		 var str="";
		 for(i = 0;i<4;i++){
		   var count=0;
		   for(j=0;j<16;j++){        
		     var pow=1;
		     for(m=15;m>j;m--){
		       pow*=2;
		     }              
		     count+=byteData[16*i+j]*pow;
		   }        
		   if(count != 0){
		     str+=String.fromCharCode(count);
		   }
		 }
		 return str;
		},
		bt64ToHex: function(byteData){
			 var hex = "";
			 for(i = 0;i<16;i++){
			   var bt = "";
			   for(j=0;j<4;j++){    
			     bt += byteData[i*4+j];
			   }    
			   hex+=DES.bt4ToHex(bt);
			 }
			 return hex;
		},
		hexToBt64: function(hex){
			 var binary = "";
			 for(i = 0;i<16;i++){
			   binary+=DES.hexToBt4(hex.substring(i,i+1));
			 }
			 return binary;
		},
		/*
		* the 64 bit des core arithmetic
		*/
		encrypt: function(dataByte,keyByte){  
		 var keys = DES.generateKeys(keyByte);    
		 var ipByte   = DES.initPermute(dataByte);  
		 var ipLeft   = new Array(32);
		 var ipRight  = new Array(32);
		 var tempLeft = new Array(32);
		 var i = 0,j = 0,k = 0,m = 0, n = 0;
		 for(k = 0;k < 32;k ++){
		   ipLeft[k] = ipByte[k];
		   ipRight[k] = ipByte[32+k];
		 }    
		 for(i = 0;i < 16;i ++){
		   for(j = 0;j < 32;j ++){
		     tempLeft[j] = ipLeft[j];
		     ipLeft[j] = ipRight[j];      
		   }  
		   var key = new Array(48);
		   for(m = 0;m < 48;m ++){
		     key[m] = keys[i][m];
		   }
		   var  tempRight = DES.xor(DES.pPermute(DES.sBoxPermute(DES.xor(DES.expandPermute(ipRight),key))), tempLeft);      
		   for(n = 0;n < 32;n ++){
		     ipRight[n] = tempRight[n];
		   }  
		   
		 }  
		 
		 
		 var finalData =new Array(64);
		 for(i = 0;i < 32;i ++){
		   finalData[i] = ipRight[i];
		   finalData[32+i] = ipLeft[i];
		 }
		 return DES.finallyPermute(finalData);  
		},
		decrypt: function(dataByte,keyByte){  
			 var keys = DES.generateKeys(keyByte);    
			 var ipByte   = DES.initPermute(dataByte);  
			 var ipLeft   = new Array(32);
			 var ipRight  = new Array(32);
			 var tempLeft = new Array(32);
			 var i = 0,j = 0,k = 0,m = 0, n = 0;
			 for(k = 0;k < 32;k ++){
			   ipLeft[k] = ipByte[k];
			   ipRight[k] = ipByte[32+k];
			 }  
			 for(i = 15;i >= 0;i --){
			   for(j = 0;j < 32;j ++){
			     tempLeft[j] = ipLeft[j];
			     ipLeft[j] = ipRight[j];      
			   }  
			   var key = new Array(48);
			   for(m = 0;m < 48;m ++){
			     key[m] = keys[i][m];
			   }
			   
			   var  tempRight = DES.xor(DES.pPermute(DES.sBoxPermute(DES.xor(DES.expandPermute(ipRight),key))), tempLeft);      
			   for(n = 0;n < 32;n ++){
			     ipRight[n] = tempRight[n];
			   }  
			 }  
			 
			 
			 var finalData =new Array(64);
			 for(i = 0;i < 32;i ++){
			   finalData[i] = ipRight[i];
			   finalData[32+i] = ipLeft[i];
			 }
			 return DES.finallyPermute(finalData);  
		},
		initPermute: function(originalData){
			 var ipByte = new Array(64);
			 for (i = 0, m = 1, n = 0; i < 4; i++, m += 2, n += 2) {
			   for (j = 7, k = 0; j >= 0; j--, k++) {
			     ipByte[i * 8 + k] = originalData[j * 8 + m];
			     ipByte[i * 8 + k + 32] = originalData[j * 8 + n];
			   }
			 }    
			 return ipByte;
		},
		expandPermute: function(rightData){  
			 var epByte = new Array(48);
			 for (i = 0; i < 8; i++) {
			   if (i == 0) {
			     epByte[i * 6 + 0] = rightData[31];
			   } else {
			     epByte[i * 6 + 0] = rightData[i * 4 - 1];
			   }
			   epByte[i * 6 + 1] = rightData[i * 4 + 0];
			   epByte[i * 6 + 2] = rightData[i * 4 + 1];
			   epByte[i * 6 + 3] = rightData[i * 4 + 2];
			   epByte[i * 6 + 4] = rightData[i * 4 + 3];
			   if (i == 7) {
			     epByte[i * 6 + 5] = rightData[0];
			   } else {
			     epByte[i * 6 + 5] = rightData[i * 4 + 4];
			   }
			 }      
			 return epByte;
		},
		xor: function(byteOne,byteTwo){  
			 var xorByte = new Array(byteOne.length);
			 for(i = 0;i < byteOne.length; i ++){      
			   xorByte[i] = byteOne[i] ^ byteTwo[i];
			 }  
			 return xorByte;
		},
		sBoxPermute: function(expandByte){
			 
			   var sBoxByte = new Array(32);
			   var binary = "";
			   var s1 = [
			       [14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7],
			       [0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8],
			       [4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0],
			       [15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 ]];

			       /* Table - s2 */
			   var s2 = [
			       [15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10],
			       [3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5],
			       [0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15],
			       [13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 ]];

			       /* Table - s3 */
			   var s3= [
			       [10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8],
			       [13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1],
			       [13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7],
			       [1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 ]];
			       /* Table - s4 */
			   var s4 = [
			       [7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15],
			       [13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9],
			       [10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4],
			       [3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 ]];

			       /* Table - s5 */
			   var s5 = [
			       [2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9],
			       [14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6],
			       [4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14],
			       [11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 ]];

			       /* Table - s6 */
			   var s6 = [
			       [12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11],
			       [10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8],
			       [9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6],
			       [4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 ]];

			       /* Table - s7 */
			   var s7 = [
			       [4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1],
			       [13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6],
			       [1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2],
			       [6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12]];

			       /* Table - s8 */
			   var s8 = [
			       [13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7],
			       [1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2],
			       [7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8],
			       [2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11]];
			   
			   for(m=0;m<8;m++){
			   var i=0,j=0;
			   i = expandByte[m*6+0]*2+expandByte[m*6+5];
			   j = expandByte[m * 6 + 1] * 2 * 2 * 2 
			     + expandByte[m * 6 + 2] * 2* 2 
			     + expandByte[m * 6 + 3] * 2 
			     + expandByte[m * 6 + 4];
			   switch (m) {
			     case 0 :
			       binary = DES.getBoxBinary(s1[i][j]);
			       break;
			     case 1 :
			       binary = DES.getBoxBinary(s2[i][j]);
			       break;
			     case 2 :
			       binary = DES.getBoxBinary(s3[i][j]);
			       break;
			     case 3 :
			       binary = DES.getBoxBinary(s4[i][j]);
			       break;
			     case 4 :
			       binary = DES.getBoxBinary(s5[i][j]);
			       break;
			     case 5 :
			       binary = DES.getBoxBinary(s6[i][j]);
			       break;
			     case 6 :
			       binary = DES.getBoxBinary(s7[i][j]);
			       break;
			     case 7 :
			       binary = DES.getBoxBinary(s8[i][j]);
			       break;
			   }      
			   sBoxByte[m*4+0] = parseInt(binary.substring(0,1));
			   sBoxByte[m*4+1] = parseInt(binary.substring(1,2));
			   sBoxByte[m*4+2] = parseInt(binary.substring(2,3));
			   sBoxByte[m*4+3] = parseInt(binary.substring(3,4));
			 }
			 return sBoxByte;
		},
		pPermute: function(sBoxByte){
			 var pBoxPermute = new Array(32);
			 pBoxPermute[ 0] = sBoxByte[15]; 
			 pBoxPermute[ 1] = sBoxByte[ 6]; 
			 pBoxPermute[ 2] = sBoxByte[19]; 
			 pBoxPermute[ 3] = sBoxByte[20]; 
			 pBoxPermute[ 4] = sBoxByte[28]; 
			 pBoxPermute[ 5] = sBoxByte[11]; 
			 pBoxPermute[ 6] = sBoxByte[27]; 
			 pBoxPermute[ 7] = sBoxByte[16]; 
			 pBoxPermute[ 8] = sBoxByte[ 0]; 
			 pBoxPermute[ 9] = sBoxByte[14]; 
			 pBoxPermute[10] = sBoxByte[22]; 
			 pBoxPermute[11] = sBoxByte[25]; 
			 pBoxPermute[12] = sBoxByte[ 4]; 
			 pBoxPermute[13] = sBoxByte[17]; 
			 pBoxPermute[14] = sBoxByte[30]; 
			 pBoxPermute[15] = sBoxByte[ 9]; 
			 pBoxPermute[16] = sBoxByte[ 1]; 
			 pBoxPermute[17] = sBoxByte[ 7]; 
			 pBoxPermute[18] = sBoxByte[23]; 
			 pBoxPermute[19] = sBoxByte[13]; 
			 pBoxPermute[20] = sBoxByte[31]; 
			 pBoxPermute[21] = sBoxByte[26]; 
			 pBoxPermute[22] = sBoxByte[ 2]; 
			 pBoxPermute[23] = sBoxByte[ 8]; 
			 pBoxPermute[24] = sBoxByte[18]; 
			 pBoxPermute[25] = sBoxByte[12]; 
			 pBoxPermute[26] = sBoxByte[29]; 
			 pBoxPermute[27] = sBoxByte[ 5]; 
			 pBoxPermute[28] = sBoxByte[21]; 
			 pBoxPermute[29] = sBoxByte[10]; 
			 pBoxPermute[30] = sBoxByte[ 3]; 
			 pBoxPermute[31] = sBoxByte[24];    
			 return pBoxPermute;
		},
		finallyPermute: function(endByte){    
			 var fpByte = new Array(64);  
			 fpByte[ 0] = endByte[39]; 
			 fpByte[ 1] = endByte[ 7]; 
			 fpByte[ 2] = endByte[47]; 
			 fpByte[ 3] = endByte[15]; 
			 fpByte[ 4] = endByte[55]; 
			 fpByte[ 5] = endByte[23]; 
			 fpByte[ 6] = endByte[63]; 
			 fpByte[ 7] = endByte[31]; 
			 fpByte[ 8] = endByte[38]; 
			 fpByte[ 9] = endByte[ 6]; 
			 fpByte[10] = endByte[46]; 
			 fpByte[11] = endByte[14]; 
			 fpByte[12] = endByte[54]; 
			 fpByte[13] = endByte[22]; 
			 fpByte[14] = endByte[62]; 
			 fpByte[15] = endByte[30]; 
			 fpByte[16] = endByte[37]; 
			 fpByte[17] = endByte[ 5]; 
			 fpByte[18] = endByte[45]; 
			 fpByte[19] = endByte[13]; 
			 fpByte[20] = endByte[53]; 
			 fpByte[21] = endByte[21]; 
			 fpByte[22] = endByte[61]; 
			 fpByte[23] = endByte[29]; 
			 fpByte[24] = endByte[36]; 
			 fpByte[25] = endByte[ 4]; 
			 fpByte[26] = endByte[44]; 
			 fpByte[27] = endByte[12]; 
			 fpByte[28] = endByte[52]; 
			 fpByte[29] = endByte[20]; 
			 fpByte[30] = endByte[60]; 
			 fpByte[31] = endByte[28]; 
			 fpByte[32] = endByte[35]; 
			 fpByte[33] = endByte[ 3]; 
			 fpByte[34] = endByte[43]; 
			 fpByte[35] = endByte[11]; 
			 fpByte[36] = endByte[51]; 
			 fpByte[37] = endByte[19]; 
			 fpByte[38] = endByte[59]; 
			 fpByte[39] = endByte[27]; 
			 fpByte[40] = endByte[34]; 
			 fpByte[41] = endByte[ 2]; 
			 fpByte[42] = endByte[42]; 
			 fpByte[43] = endByte[10]; 
			 fpByte[44] = endByte[50]; 
			 fpByte[45] = endByte[18]; 
			 fpByte[46] = endByte[58]; 
			 fpByte[47] = endByte[26]; 
			 fpByte[48] = endByte[33]; 
			 fpByte[49] = endByte[ 1]; 
			 fpByte[50] = endByte[41]; 
			 fpByte[51] = endByte[ 9]; 
			 fpByte[52] = endByte[49]; 
			 fpByte[53] = endByte[17]; 
			 fpByte[54] = endByte[57]; 
			 fpByte[55] = endByte[25]; 
			 fpByte[56] = endByte[32]; 
			 fpByte[57] = endByte[ 0]; 
			 fpByte[58] = endByte[40]; 
			 fpByte[59] = endByte[ 8]; 
			 fpByte[60] = endByte[48]; 
			 fpByte[61] = endByte[16]; 
			 fpByte[62] = endByte[56]; 
			 fpByte[63] = endByte[24];
			 return fpByte;
		},
		getBoxBinary: function(i) {
			 var binary = "";
			 switch (i) {
			   case 0 :binary = "0000";break;
			   case 1 :binary = "0001";break;
			   case 2 :binary = "0010";break;
			   case 3 :binary = "0011";break;
			   case 4 :binary = "0100";break;
			   case 5 :binary = "0101";break;
			   case 6 :binary = "0110";break;
			   case 7 :binary = "0111";break;
			   case 8 :binary = "1000";break;
			   case 9 :binary = "1001";break;
			   case 10 :binary = "1010";break;
			   case 11 :binary = "1011";break;
			   case 12 :binary = "1100";break;
			   case 13 :binary = "1101";break;
			   case 14 :binary = "1110";break;
			   case 15 :binary = "1111";break;
			 }
			 return binary;
		},
		/*
		* generate 16 keys for xor
		*
		*/
		generateKeys: function(keyByte){    
		 var key   = new Array(56);
		 var keys = new Array();  
		 
		 keys[ 0] = new Array();
		 keys[ 1] = new Array();
		 keys[ 2] = new Array();
		 keys[ 3] = new Array();
		 keys[ 4] = new Array();
		 keys[ 5] = new Array();
		 keys[ 6] = new Array();
		 keys[ 7] = new Array();
		 keys[ 8] = new Array();
		 keys[ 9] = new Array();
		 keys[10] = new Array();
		 keys[11] = new Array();
		 keys[12] = new Array();
		 keys[13] = new Array();
		 keys[14] = new Array();
		 keys[15] = new Array();  
		 var loop = [1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1];

		 for(i=0;i<7;i++){
		   for(j=0,k=7;j<8;j++,k--){
		     key[i*8+j]=keyByte[8*k+i];
		   }
		 }    
		 
		 var i = 0;
		 for(i = 0;i < 16;i ++){
		   var tempLeft=0;
		   var tempRight=0;
		   for(j = 0; j < loop[i];j ++){          
		     tempLeft = key[0];
		     tempRight = key[28];
		     for(k = 0;k < 27 ;k ++){
		       key[k] = key[k+1];
		       key[28+k] = key[29+k];
		     }  
		     key[27]=tempLeft;
		     key[55]=tempRight;
		   }
		   var tempKey = new Array(48);
		   tempKey[ 0] = key[13];
		   tempKey[ 1] = key[16];
		   tempKey[ 2] = key[10];
		   tempKey[ 3] = key[23];
		   tempKey[ 4] = key[ 0];
		   tempKey[ 5] = key[ 4];
		   tempKey[ 6] = key[ 2];
		   tempKey[ 7] = key[27];
		   tempKey[ 8] = key[14];
		   tempKey[ 9] = key[ 5];
		   tempKey[10] = key[20];
		   tempKey[11] = key[ 9];
		   tempKey[12] = key[22];
		   tempKey[13] = key[18];
		   tempKey[14] = key[11];
		   tempKey[15] = key[ 3];
		   tempKey[16] = key[25];
		   tempKey[17] = key[ 7];
		   tempKey[18] = key[15];
		   tempKey[19] = key[ 6];
		   tempKey[20] = key[26];
		   tempKey[21] = key[19];
		   tempKey[22] = key[12];
		   tempKey[23] = key[ 1];
		   tempKey[24] = key[40];
		   tempKey[25] = key[51];
		   tempKey[26] = key[30];
		   tempKey[27] = key[36];
		   tempKey[28] = key[46];
		   tempKey[29] = key[54];
		   tempKey[30] = key[29];
		   tempKey[31] = key[39];
		   tempKey[32] = key[50];
		   tempKey[33] = key[44];
		   tempKey[34] = key[32];
		   tempKey[35] = key[47];
		   tempKey[36] = key[43];
		   tempKey[37] = key[48];
		   tempKey[38] = key[38];
		   tempKey[39] = key[55];
		   tempKey[40] = key[33];
		   tempKey[41] = key[52];
		   tempKey[42] = key[45];
		   tempKey[43] = key[41];
		   tempKey[44] = key[49];
		   tempKey[45] = key[35];
		   tempKey[46] = key[28];
		   tempKey[47] = key[31];
		   switch(i){
		     case 0: for(m=0;m < 48 ;m++){ keys[ 0][m] = tempKey[m]; } break;
		     case 1: for(m=0;m < 48 ;m++){ keys[ 1][m] = tempKey[m]; } break;
		     case 2: for(m=0;m < 48 ;m++){ keys[ 2][m] = tempKey[m]; } break;
		     case 3: for(m=0;m < 48 ;m++){ keys[ 3][m] = tempKey[m]; } break;
		     case 4: for(m=0;m < 48 ;m++){ keys[ 4][m] = tempKey[m]; } break;
		     case 5: for(m=0;m < 48 ;m++){ keys[ 5][m] = tempKey[m]; } break;
		     case 6: for(m=0;m < 48 ;m++){ keys[ 6][m] = tempKey[m]; } break;
		     case 7: for(m=0;m < 48 ;m++){ keys[ 7][m] = tempKey[m]; } break;
		     case 8: for(m=0;m < 48 ;m++){ keys[ 8][m] = tempKey[m]; } break;
		     case 9: for(m=0;m < 48 ;m++){ keys[ 9][m] = tempKey[m]; } break;
		     case 10: for(m=0;m < 48 ;m++){ keys[10][m] = tempKey[m]; } break;
		     case 11: for(m=0;m < 48 ;m++){ keys[11][m] = tempKey[m]; } break;
		     case 12: for(m=0;m < 48 ;m++){ keys[12][m] = tempKey[m]; } break;
		     case 13: for(m=0;m < 48 ;m++){ keys[13][m] = tempKey[m]; } break;
		     case 14: for(m=0;m < 48 ;m++){ keys[14][m] = tempKey[m]; } break;
		     case 15: for(m=0;m < 48 ;m++){ keys[15][m] = tempKey[m]; } break;
		   }
		 }
		 return keys;  
	}
};


//end-------------------------------------------------------------------------------------------------------------
/*
function test() {
 
 var msg = "abcdefgh";
 var bt = strToBt(msg);
 
 var key = "12345678";
 var keyB = strToBt(key);
   
 var encByte = enc(bt,keyB);
     
 var enchex  = bt64ToHex(encByte);  
 endata.value=enchex;
 
 var encStr = hexToBt64(enchex);
 alert("encStr="+encStr);
 var eByte = new Array();
 for(m=0;m<encStr.length;m++){
   eByte[m] = parseInt(encStr.substring(m,m+1));
 }
 var decbyte= dec(eByte,keyB)
 var decmsg= byteToString(decbyte);
 alert("decbyte="+decbyte);
 alert("decmsg="+decmsg);  
 
function getResult(){
    //待加密字符串
    var str = document.getElementById("str").innerText;
    //第一个参数必须；第二个、第三个参数可选
    var key1 = document.getElementById("key1").innerText;  
    var key2 = document.getElementById("key2").innerText; 
    var key3 = document.getElementById("key3").innerText; 
    //加密方法        
    var  enResult = DES.enc(str,key1,key2,key3);            
    //解密方法
    var deResult = DES.dec(enResult,key1,key2,key3);
    //展示结果
    document.getElementById("enStr").innerText = enResult; 
    document.getElementById("dnStr").innerText = deResult; 
}
}*/